Mental Math

Race against the clock to solve math problems! Progress through 5 tiers of increasing difficulty spanning addition, multiplication, percentages, and fractions.

Slide numbered tiles on a 4x4 grid. When two tiles with the same number collide, they merge into their sum! Can you reach the legendary 2048 and 4096 tiles?

Play unlimited free Sudoku across 4 difficulty tiers from Easy to Grandmaster. Features smart pencil candidate notes, automatic error detection, and an intelligent AI Logic Explainer that teaches advanced solving techniques step-by-step.